When using Dark Side Yoda, one can easily fall into infinite loop when there's one Zeffo Tomb Guardian left, and it can't kill Yoda, since he has a Siphon boosting his stats. Yoda, on the other hand, also can't kill Guardian b/c of his shield (or it would take a very long time for that)
I have a lvl99 Dark Side Yoda, played the Team of JKLS, Mara Skywalker, Dark Yoda, JK Cal Kestis, Moff Gideon, and fell into the infinite loop.
On tier 9, I hit 80 % of damage, and only One Guardian has left against Dark Yoda.
I played on PC, turned on Auto Fight, returned in 1 hour, and observed that Yoda was able to deal additional 2% (by dealing a small damage, just 1-2 dmg per hit). By that time, Yoda obtained around 2k points od Siphon.
I had no other option expect of forfeit, and ofc, my progress (of 82%) wasn't recorded.
Why doesn't any Coliseum fight has some limitation on turns? Say 20 or 30, after which the Coliseum Bosses will be able to one shot the whole player's team?